题名 | High figure-of-merit and power generation in high-entropy GeTe-based thermoelectrics |
作者 | |
通讯作者 | He,Jiaqing |
发表日期 | 2022-07-08
|
DOI | |
发表期刊 | |
ISSN | 0036-8075
|
EISSN | 1095-9203
|
卷号 | 377期号:6602页码:208-213 |
摘要 | The high-entropy concept provides extended, optimized space of a composition, resulting in unusual transport phenomena and excellent thermoelectric performance. By tuning electron and phonon localization, we enhanced the figure-of-merit value to 2.7 at 750 kelvin in germanium telluride-based high-entropy materials and realized a high experimental conversion efficiency of 13.3% at a temperature difference of 506 kelvin with the fabricated segmented module. By increasing the entropy, the increased crystal symmetry delocalized the distribution of electrons in the distorted rhombohedral structure, resulting in band convergence and improved electrical properties. By contrast, the localized phonons from the entropy-induced disorder dampened the propagation of transverse phonons, which was the origin of the increased anharmonicity and largely depressed lattice thermal conductivity. We provide a paradigm for tuning electron and phonon localization by entropy manipulation, but we have also demonstrated a route for improving the performance of high-entropy thermoelectric materials. |
相关链接 | [来源记录] |
收录类别 | |
语种 | 英语
|
重要成果 | NI期刊
; ESI热点
; ESI高被引
; NI论文
|
学校署名 | 第一
; 通讯
|
资助项目 | Guangdong Province Program[00201517]
; Guangdong-Hong Kong-Macao Joint Laboratory[2019B121205001]
; National Natural Science Foundation of China[
|
WOS研究方向 | Science & Technology - Other Topics
|
WOS类目 | Multidisciplinary Sciences
|
WOS记录号 | WOS:000822228900045
|
出版者 | |
ESI学科分类 | BIOLOGY & BIOCHEMISTRY;CLINICAL MEDICINE;MULTIDISCIPLINARY;PLANT & ANIMAL SCIENCE;ENVIRONMENT/ECOLOGY;SOCIAL SCIENCES, GENERAL;MICROBIOLOGY;ECONOMICS BUSINESS;IMMUNOLOGY;MATERIALS SCIENCE;MATHEMATICS;COMPUTER SCIENCE;SPACE SCIENCE;MOLECULAR BIOLOGY & GENETICS;CHEMISTRY;PSYCHIATRY/PSYCHOLOGY;NEUROSCIENCE & BEHAVIOR;PHYSICS;GEOSCIENCES;ENGINEERING
|
Scopus记录号 | 2-s2.0-85133861615
|
来源库 | Web of Science
|
引用统计 |
被引频次[WOS]:275
|
成果类型 | 期刊论文 |
条目标识符 | http://kc.sustech.edu.cn/handle/2SGJ60CL/355902 |
专题 | 理学院_物理系 |
作者单位 | 1.Shenzhen Key Laboratory of Thermoelectric Materials,Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China 2.School of Materials and Energy,University of Electronic Science and Technology of China,Chengdu,610054,China 3.Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices,Southern University of Science and Technology,Shenzhen,518055,China |
第一作者单位 | 物理系 |
通讯作者单位 | 物理系; 南方科技大学 |
第一作者的第一单位 | 物理系 |
推荐引用方式 GB/T 7714 |
Jiang,Binbin,Wang,Wu,Liu,Shixuan,et al. High figure-of-merit and power generation in high-entropy GeTe-based thermoelectrics[J]. Science,2022,377(6602):208-213.
|
APA |
Jiang,Binbin.,Wang,Wu.,Liu,Shixuan.,Wang,Yan.,Wang,Chaofan.,...&He,Jiaqing.(2022).High figure-of-merit and power generation in high-entropy GeTe-based thermoelectrics.Science,377(6602),208-213.
|
MLA |
Jiang,Binbin,et al."High figure-of-merit and power generation in high-entropy GeTe-based thermoelectrics".Science 377.6602(2022):208-213.
|
条目包含的文件 | 条目无相关文件。 |
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